which were expermental groups

Answers

Answer 1

Answer:

An experimental group, also known as a treatment group, receives the treatment whose effect researchers wish to study, whereas a control group does not. They should be identical in all other ways.


Related Questions

The Calvin cycle is affected by certain environmental conditions, including light intensity, availability, and .

Answers

The Calvin cycle represents the light-independent set of photosynthetic reactions affected by light intensity, availability, and temperature.

What is Calvin cycle?

It is the process that uses adenosine triphosphate (ATP) and NADPH generated during light-dependent reactions to convert atmospheric CO2 into complex carbohydrates.

How does temperature affect the Calvin cycle?

Enzymes are proteins and above the optimal temperature denaturation of enzymes occurs, decreasing performance.

At higher temperatures, the stomata close preventing the entry of CO, while in the substomatal cavities the concentration of O continues to increase, which is a product of water photolysis.

Therefore, we can conclude that at the beginning of the Calvin cycle, atmospheric CO2 enters the leaf through the stomata, a process that would be affected by light intensity, availability and temperature.

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Endosymbiotic theory provides an explanation of how the first eukaryotic cells may have formed and why DNA can be found in the organelles inside the cells. What does this theory suggests?

Eukaryotes were much larger cells that took over the food supply and resources.

Eukaryotes were very similar to the early bacteria just a little larger in size.

Eukaryotes consumed photosynthetic bacteria and made them part of the make up of the cell,

Bacteria fused together to make a larger cell that contained more DNA.

Answers

Answer:

Hey buddy!

Explanation:

The endosymbiotic theory states that some of the organelles in eukaryotic cells were once prokaryotic microbes. Mitochondria and chloroplasts are the same size as prokaryotic cells and divide by binary fission. Mitochondria and chloroplasts have their own DNA which is circular, not linear.

hope u mark me as brainalist

How do amino acids move across the plasma membrane?.

Answers

Answer:

Facilitated diffusion therefore allows polar and charged molecules, such as carbohydrates, amino acids, nucleosides, and ions, to cross the plasma membrane.

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what is the humans closet living relative

Answers

Answer:

See below.

Explanation:

Although figures vary from study to study, it’s currently generally accepted that chimpanzees are humans’ closest-living relative, which shares around 98.7% of our DNA.

-hope it helps

The ability of water to change from solid to liquid is a(n) __________
of water.

Answers

melting hope it helps


Brainliest

Which pre-mrna processing step is important for initiating translation?.

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Answer:The three most important steps of pre-mRNA processing are the addition of stabilizing and signaling factors at the 5′ and 3′ ends of the molecule, and the removal of the introns ((Figure)). In rare cases, the mRNA transcript can be “edited” after it is transcribed.

Explanation:

reproduction generates offspring that are genetically identical to a single
parent

Answers

Answer:

This form of reproduction is Mitosis

Explanation:

This form of as3xual reproduction produces two identical daughter/diploid cells, with 46 chromosomes due to their parental cell. The daughter cells are the genetically identical offspring to the single parent.

Where does the phosphorus cycle begin

Answers

The phosphorus cycle starts in the earth's crust. The phosphate salts are broken down from the rocks. These salts are washed away into the ground where they mix in the soil.

Answer:

the first step of the phosphorus cycle involves the extraction of phosphorus from the rocks by weathering.

Explanation:

Weather events, such as rain and other sources of erosion, result in phosphorus being washed into the soil.

Hope this helps! Good luck!

during ____, atoms arrange in a pattern over an over.

Answers

Answer:

crystallization

True or false. White rice is high in fiber.​

Answers

Answer:

It depends on what a lot of fiber but brown rice has more at 1.9 and white is at 0.9 and beans are at 1.9 so I say False

Explanation:

The diploid number of chromosomes in a species is always
a four times the haploid number
b twice the haploid number
c a quarter of the haploid number
d half of the haploid number

Answers

The correct answer is (b) twice the haploid number :)

How will genome projects contribute to better productivity in cattle?

Answers

Answer:

Genome projects help to increase milk and meat production by creating the high milk producing and faster growing hybrid cattle. Genome projects help to improve the health by generating disease resistant and drought resistant cattle.

Can someone help me and give me the answers thank you.

Answers

Answer:

Left side under SUN: CO2, H2O

Middle ones, going top to bottom:  6CO2 + 6H2O → C6H12O6+ 6O, chloroplast, To make energy for the plant to use and grow

Right side next to products: Oxygen and Glucose

Explanation:

This is photosynthesis.

Neurons sent by the __________ to the prefrontal lobes of the cerebral cortex contribute to improvements in sustained, controlled attention

Answers

Neurons sent by the reticular formation to the prefrontal lobes of the cerebral cortex contribute to improvements in sustained, controlled attention

The mechanism of action of central nervous system

The central nervous system is one of the major part of the nervous system that consists of:

cerebral cortex,

limbic system,

basal ganglia,

thalamus,

hypothalamus, and cerebellum

The cerebral cortex is the outer part of the brain that is concerned with higher specific functions such as speech, the thinking, and memory.

The reticular formation are network of small neurons that send signals to the prefrontal lobes of the cerebral cortex which contribute to improvements in sustained, controlled attention.

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Transfer of energy always travels from cold to warm, or cold to hot.
True or False?

Answers

Answer:

False it could be the opposite

Explanation:

why phytoplankton biomass decreases between June and July​

Answers

Answer:

The cause of phytoplankton blooms has traditionally been attributed to seasonal changes in ‘bottom-up’ environmental factors controlling phytoplankton division rates, such as nutrients and light 3,4,5,6,7. However, seasonal changes in phytoplankton biomass (P) represented by the biomass-specific net rate of change (r) always reflect the interplay between two dominant terms, the phytoplankton division rate (μ) and the sum of all loss (l) rates (e.g., grazing, viruses, sinking):

Explanation:

The photosynthetic production of organic carbon by marine phytoplankton plays a key role in regulating atmospheric carbon dioxide (CO2) levels, such that without this biological uptake it is estimated that present day atmospheric CO2 concentrations would be 200 ppm (50%) higher1. Phytoplankton blooms in the temperate and polar oceans play a disproportionally large role in ocean CO2 uptake, as well as being critical ecological events to which the migration patterns of marine animals, ranging from zooplankton to whales, have evolved2. The cause of phytoplankton blooms has traditionally been attributed to seasonal changes in ‘bottom-up’ environmental factors controlling phytoplankton division rates, such as nutrients and light3,4,5,6,7. However, seasonal changes in phytoplankton biomass (P) represented by the biomass-specific net rate of change (r) always reflect the interplay between two dominant terms, the phytoplankton division rate (μ) and the sum of all loss (l) rates (e.g., grazing, viruses, sinking):

r=1PdPdt=μ−

Hope this helps

Help me please┐(‘~`;)┌​

Answers

Answer:

The first one is H0m0zygous.

The second one is Heterozygous.

Explanation:

see answer.

Why is it difficult for scientists to study
organisms that live at the bottom of the
ocean?
A. because the LOWER PRESSURE kills the organisms as
soon as they reach the surface
B. because the COLD TEMPERATURE kills the
organisms as soon as they reach the surface
C. because the DECREASED LIGHT kills the organisms
as soon as they reach the surface
D. because the HIGHER PRESSURE kills the organisms
as soon as they reach the surface

Answers

The answer is A. An organism living at the bottom of the ocean is used to a high pressure so they cannot study them as the lower pressure kills the organisms as they reach the surface.

Which of the following goals is the U. S. Integrated Ocean Observing System (IOOS) not intended to address? a. Increase understanding of the oceans b. Improve ocean safety c. Promote ocean ownership d. Enhance the economic output of the oceans Please select the best answer from the choices provided A B C D.

Answers

The following goal the U. S. Integrated Ocean Observing System (IOOS) is not intended to address is to promote ocean ownership.

What is the Integrated Ocean Observing System?

The United States' Integrated Ocean Observing System, is a network of people and technology.

It collaborates to collect and transmit data on our coastal waters, Great Lakes, and seas.

Some of its work is gathering data in the ocean, while others are on land or in space.

Thus, the correct option is C, which promotes ocean ownership.

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Hemophilia is an X-linked recessive trait in humans. Would there be any offspring that would have hemophilia if the Mother is a carrier, and the Father is unaffected, and what would be the percentage of the affected offspring?

USE PHOTO!!​

Answers

Answer:

yes.25%.

one carrier daughter. one hemophiliac son

one normal son,one normal daughter

A group of biology students tests the growth of bacteria under different conditions. The students apply the same amount of bacteria to identical Petri dishes enriched with nutrients, then place each plate at a different temperature. The bacteria are allowed to grow for three days, after which the number of bacterial colonies on each plate is counted. What is the dependent variable in this experiment?

Answers

In the above experiment, the number of bacterial colonies after three days is a dependent variable. Option A is the right answer.
The variables in the experiment that are reliant on the cause independent variables are referred to as dependent variables.
For instance, consider the amount of bacterial colonies after three days.
The variables in the experiment that can be modified or manipulated are known as independent variables.
For example, temperature, nutrient content, and so forth.
As a result, in the provided experiment, the number of bacterial colonies after three days is a dependent variable.

which of the following is correct?
cells differentiate
cells come from the air
cells come from cells
A and C

Answers

Answer:

The answer to your question is Cells come from other Cells.

What controls the ratio of the two isotopes in foraminifera shells?


water pressure


The temperature of the water


Radiation


The salts in the water

Answers

What controls the ratio of the two isotopes in foraminifera shells?

Answer:

The salts in the water

Arctic ___, fish that produces antifreeze proteins in its blood.

Answers

[tex]\qquad \qquad\huge \underline{\boxed{\sf Answer}}[/tex]

Arctic cod , fish that produces antifreeze proteins in its blood.

in what way can you help those people with hormonal disorders?​

Answers

Answer: Estrogen therapy. ...

Vaginal estrogen. ...

Hormonal birth control. ...

Anti-androgen medications. ...

Testosterone therapy. ...

Explanation:

Lifestyle changes. Lifestyle changes that may help reduce the likelihood and symptoms of hormonal imbalances include: maintaining a moderate body weight. eating a nutritious and balanced diet.

Discuss the difference between a lytic cycle and a lysogenic cycle. In each case, how is the viral genetic material being replicated?

Answers

The lytic cycle involves the reproduction of viruses using a host cell to manufacture more viruses; the viruses then burst out of the cell. The lysogenic cycle involves the incorporation of the viral genome into the host cell genome, infecting it from within

Question: A rat approaches a piece of rotting fruit, takes a small bite, and runs away. Which statement best explains the reason for the rat’s behavior?
A. The rat runs away to process the sensory information.
B. Sensory receptors in the rat’s whiskers respond to the input about the texture of the fruit.
C. Information gathered by the rat’s auditory receptors signals that the environment around the fruit is not safe.

I will mark brainiest if your response has scientific reasoning and accurate, I believe I have the answer, yet I want to double-check. Thank you!

Answers

Answer : The rat’s chemical receptors detect chemicals in the fruit that alert the rat to possible danger.

Hope it helps

The teeth, jawbones and muscles of mammalian herbivores are adapted for side-to-side ____________movements.

Answers

He heir he’s Esther

Magnesium and calcium work together to: ____________
a. regulate the contraction and relaxation of muscles
b. control blood glucose levels
c. cause bone demineralization
d. maintain the acid-base balance in body cells
e. transport proteins through the blood

Answers

Answer:

a. Regulate the contraction and relaxation of muscles

Magnesium and calcium work together to A) regulate the contraction and relaxation of muscles.

How do magnesium and calcium work together?

They paint together in lots of capabilities, such as regulating heartbeat, muscle tone and contraction, and nerve conduction. At different times, calcium and magnesium seem to compete through binding competitively to the same websites in the frame. it's miles vital to have a look at one's weight loss program to decide on calcium and magnesium wishes.

What are magnesium and calcium correct for?

Studies suggest that calcium, magnesium, and zinc may improve several elements of your health, including bone power, mood, immunity, blood sugar law, and sleep first-rate.

Learn more about Magnesium and calcium here: https://brainly.in/question/2707001

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Animation 7.2: In meiosis, a _______ parent cell divides to form _______ daughter cells. diploid; 2 haploid diploid; 4 haploid haploid; 2 diploid haploid; 4 diploid

Answers

Answer:

2 diploid/haploid

Explanation:

in meiosis at first one cell divide and gives two diploid cell and then 4 haploid cell

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